Design and application of soft robot grippers using low-viscosity silicone by lost core injection molding manufacturing method
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Helmy Dewanto Bryantono
,
Meng-Hsun Tsai
und
Shi-Chang Tseng
Abstract
This project aims to develop a manufacturing method for a newly designed soft robot gripper in one shot by utilizing a low-viscosity liquid silicone rubber (LSR) lost-core injection molding embedded with a polyvinyl alcohol (PVA) water-soluble core inside. Due to the relatively high viscosity of LSR, higher injection pressures were needed to complete the mold-filling process. This, in turn, resulted in a washout of the PVA lost core. Therefore, this study used a lower viscosity of LSR and pressure to avoid this problem. Ansys structural analysis simulation was used to get the experiment variables and then compare them with the real experiment results. The maximum pressure employed in the simulation of the gripper bending is 30 kPa with 119.38 mm, while the experimental is 112.65 mm total deformation. Finally, the washout of the lost core, the bending restriction problem, and the complicated manufacturing problems in this area were tackled in this study. The design of a finger with a greater angle at the edge and the use of low-viscosity LSR as the primary material in a one-shot lost core LSR injection molding method are extensions from previous studies that are believed to be valuable inventions for academic and practical applications.
Award Identifier / Grant number: MOST-107-2221-E-224-045
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Research ethics: The research work is original by the authors.
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Informed consent: Not applicable.
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Author contributions: Helmy Dewanto Bryantono: conceptualization, formal analysis, methodology, project administration, writing – original draft, visualization. Meng-Hsun Tsai: data curation, investigation, resources, software, writing – review & editing. Shi-Chang Tseng: validation, supervision, funding acquisition.
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Use of Large Language Models, AI and Machine Learning Tools: None declared.
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Conflict of interest: The authors have no conflicts to disclose.
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Research funding: This work has been developed within the project by the Ministry of Science and Technology (MOST) in Taiwan, funded from grant MOST-107-2221-E-224-045.
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Data availability: The data that support the findings of this study are available from the corresponding author upon reasonable request.
References
1. Venkatesh Raja, K.; Malayalamurthi, R. Assessment and Influence of Internal Rigid Core on the Contact Parameters for Soft Hemispherical Fingertips. J. Polym. Eng. 2014, 34 (2), 145–152. https://doi.org/10.1515/polyeng-2013-0121.Suche in Google Scholar
2. Wang, Z.; Or, K.; Hirai, S. A Dual-Mode Soft Gripper for Food Packaging. Rob. Auton. Syst. 2020, 125. https://doi.org/10.1016/j.robot.2020.103427.Suche in Google Scholar
3. Hao, Y.; Wang, T.; Ren, Z.; Gong, Z.; Wang, H.; Yang, X.; Guan, S.; Wen, L. Modeling and Experiments of a Soft Robotic Gripper in Amphibious Environments. Int. J. Adv. Robot. Syst. 2017, 14 (3). https://doi.org/10.1177/1729881417707148.Suche in Google Scholar
4. Duran, M. M.; Moro, G.; Zhang, Y.; Islam, A. 3D Printing of Silicone and Polyurethane Elastomers for Medical Device Application: A Review. Adv. Ind. Manuf. Eng. 2023; https://doi.org/10.1016/j.aime.2023.100125.Suche in Google Scholar
5. Osswald, T. A.; Menges, G. Materials Science of Polymers for Engineers; Carl Hanser Verlag Gmbh Co KG: Munchen, 2012.10.3139/9781569905241Suche in Google Scholar
6. Liparoti, S.; Speranza, V.; De Meo, A.; De Santis, F.; Pantani, R. Prediction of the Maximum Flow Length of a Thin Injection Molded Part. J. Polym. Eng. 2020, 40 (9), 783–795. https://doi.org/10.1515/polyeng-2019-0292.Suche in Google Scholar
7. Tsou, H. H.; Huang, C. C.; Chen, Y. C.; Shih, S. Y. Online Detection of Residual Stress Near the Gate Using Cavity Pressure for Injection Molding. J. Polym. Eng. 2023, 43 (1), 89–99. https://doi.org/10.1515/polyeng-2022-0113.Suche in Google Scholar
8. Giacomin, A. J.; Hade, A. J.; Johnson, L. M.; Mix, A. W.; Chen, Y. C.; Liao, H. C.; Tseng, S. C. Core Deflection in Injection Molding. J. Nonnewton Fluid Mech. 2011, 166 (16), 908–914. https://doi.org/10.1016/j.jnnfm.2011.04.005.Suche in Google Scholar
9. Chen, Y. C.; Liao, Y. J.; Tseng, S. C.; Giacomin, A. J. Core Deflection in Plastics Injection Molding: Direct Measurement, Flow Visualization and 3d Simulation. Polym. – Plast. Technol. Eng. 2011, 50 (9), 863–872. https://doi.org/10.1080/03602559.2010.551386.Suche in Google Scholar
10. Dewanto Bryantono, H.; Tseng, S.-C. Design and Manufacture of Robot Gripper Using Injection Molding. Master Thesis, National Yunlin University of Science and Technology, 2021. https://hdl.handle.net/11296/ca294u (accessed 2024-01-31).Suche in Google Scholar
11. White, F. M. In Fluid Mechanics, 7th ed.; Stenquist, B., Ed.; McGraw-Hil: New York, vol. 7, 2011.Suche in Google Scholar
12. Wang, M.-L.; Chang, R.-Y.; Hsu, C.-H. D. Molding Simulation: Theory and Practice; McGraw-Hill: New York, 2018.10.3139/9781569906200.fmSuche in Google Scholar
13. Cook, R. D.; Malkus, D. S.; Plesha, M. E.; Witt, R. J. Concepts and Applications of Finite Element Analysis, 4th ed.; John Wiley and Sons, Inc: Madison, US, 2001.Suche in Google Scholar
14. Harkous, A.; Colomines, G.; Leroy, E.; Mousseau, P.; Deterre, R. The Kinetic Behavior of Liquid Silicone Rubber: A Comparison between Thermal and Rheological Approaches Based on Gel Point Determination. React. Funct. Polym. 2016, 101, 20–27. https://doi.org/10.1016/j.reactfunctpolym.2016.01.020.Suche in Google Scholar
15. Kamal, M. R.; Sourour, S. Kinetics and Thermal Characterization of Thermoset Cure. Polym. Eng. Sci. 1973, 13, 59–64; https://doi.org/10.1002/pen.760130110.Suche in Google Scholar
16. Bont, M.; Barry, C.; Johnston, S. A Review of Liquid Silicone Rubber Injection Molding: Process Variables and Process Modeling. Polym. Eng. Sci. John Wiley and Sons Inc February, 2021, 331–347. https://doi.org/10.1002/pen.25618.Suche in Google Scholar
17. Asia Silicone Chemical Materials Co., Ltd. Liq. Silicon. Rubber CN-251 Mater. Prop., https://toungchi.com.tw/application.php (accessed 2024-03-18).Suche in Google Scholar
18. Hassan, C. M.; Trakampan, P.; Peppas, N. A. Water Solubility Characteristics of Poly (Vinyl Alcohol) and Gels Prepared by Freezing/Thawing Processes. Water Soluble Polym.: Solut. Prop. Appl. 2002, 31–40.10.1007/0-306-46915-4_3Suche in Google Scholar
19. RS Components Ltd RS PRO – PVA Technical Document. Birchington Road, Corby, Northants, NN17 9RS, UK, 2020. https://docs.rs-online.com/55d3/A700000006781717.pdf (accessed 2024-03-18).Suche in Google Scholar
20. IRB 1200 ABB Robotics – Articulated Robots Portfolio | ABB Robotics (Browse All ABB Robots). https://new.abb.com/products/robotics/robots/articulated-robots/irb-1200 (accessed 2023-08-05).Suche in Google Scholar
21. Jagota, V.; Sethi, A. P. S.; Kumar, K. Finite Element Method: An Overview. Walailak J. Sci. Technol.(WJST). 2013, 10 (1), 1–8.Suche in Google Scholar
22. Lin, C. C.; Yang, C. L. A Water-Soluble Core for Manufacturing Hollow Injection-Molded Products. Polym. (Basel) 2022, 14 (11). https://doi.org/10.3390/polym14112185.Suche in Google Scholar PubMed PubMed Central
23. Kuraray Co., Ltd.. MOWIFLEX TM Maximizing Freedom of Design in Manufacturing Plastic Parts; Kuraray Co., Ltd.: Tokyo, Japan, 2021.Suche in Google Scholar
24. Bryantono, H. D.; Saduk, M. R. F.; Hong, J.; Tsai, M.-H.; Tseng, S.-C. Design and Manufacturing of Soft Grippers for Robotics by Injection Molding Technology. Adv. Sci. Technol. Eng. Syst. J. 2023, 8 (4), 11–17. https://doi.org/10.25046/aj080402.Suche in Google Scholar
25. Saduk, M. R. F.; Bryantono, H. D.; Tseng, S. C. Engineering Design of Soft Gripper and Manufacturing by TPE Hollow Injection Molding. In Proceedings – 2022 IET International Conference on Engineering Technologies and Applications, IET-ICETA. 2022; Institute of Electrical and Electronics Engineers Inc., 2022.10.1109/IET-ICETA56553.2022.9971524Suche in Google Scholar
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Artikel in diesem Heft
- Frontmatter
- Material Properties
- The latest research status of porous sound-absorbing materials
- Thermal annealing and microwave irradiation in enhancing the mechanical performance of 3D printing CF/PA12 composite
- Investigation into the crystallization of poly-lactic acid following the application of a novel high molecular weight, high epoxy functionality polymer chain extender
- Effect of AO 4426 on damping properties of PVA/CPE-AO 2246
- Preparation and Assembly
- Curcumin-encapsulated Pluronic micelles in chitosan/PEO nanofibers: a controlled release strategy for wound healing applications
- Photocatalytic g-C3N4/poly(2-acrylamido-2-methylpropane sulfonic acid) composite hydrogel triggering the synergetic effect for long-lasting sustainable purifying organic wastewater
- Engineering and Processing
- A dynamic pressure strategy to minimize void formation in vacuum infusion
- Design and application of soft robot grippers using low-viscosity silicone by lost core injection molding manufacturing method
